In addition the pushbutton next to the wifi module puts the A64 into FEL (recovery/USB bootloader) mode, which is also handy for development purposes (check linux-sunxi wiki for more on FEL-mode)
Check here:
https://linux-sunxi.org/Main_Page
http://files.pine64.org/doc/pinebook/pin...ic_3.0.pdf (SW9-pushbutton, SW11- UART/headphone mux switch)
http://files.pine64.org/doc/pinebook/gui..._Guide.pdf (headphone jack UART cable)
Check here:
https://linux-sunxi.org/Main_Page
http://files.pine64.org/doc/pinebook/pin...ic_3.0.pdf (SW9-pushbutton, SW11- UART/headphone mux switch)
http://files.pine64.org/doc/pinebook/gui..._Guide.pdf (headphone jack UART cable)
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